铣削GH4169高温合金用刀具的磨损机理  

Wear Mechanism of Tool in Milling Super Alloy GH4169

作　　者：孙士雷 赵杰[1] 赵灿[2] 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001 [2]黑龙江科技大学现代制造加工中心,黑龙江哈尔滨150022

出　　处：《材料科学与工程学报》2016年第4期647-650,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51075128)

摘　　要：采用肯纳KYHS10陶瓷刀具对高温合金GH4169进行了高速铣削加工试验,结合Dino显微镜和扫描电镜观察了陶瓷刀具在高速铣削加工后的磨损形貌,并分析了在不同的切削参数下的刀具磨损机理。试验结果表明:陶瓷刀具的磨损形貌主要表现为沟槽磨损、前刀面月牙洼磨损、后刀面磨损、微崩刃和剥落等,主要的磨损机理为黏结磨损、扩散磨损、磨料磨损等,并且在不同的切削参数下磨损机理不同。黏结磨损随切削速度的提高逐渐加剧,磨粒磨损随切削速度的提高而下降。The Kenna KYHS10 ceramic tool was adopted in high-speed milling of super alloy GH4169 in order to investigate its wear mechanism. In the high-speed milling progress, the wear morphology of the ceramic tool was observed with Dino microscope and scanning electron microscope, and the mechanism of tool wear was analyzed at different cutting parameters. Results show that the dominant wear is notch wear, rake face wear, flank wear, or micro-chipping and flaking depending on the location over the tool. The main wear mechanism is also different at different process parameters, involving adhesive wear, diffusion wear and abrasive wear. With the increase of cutting speed, the adhesive wear is gradually increasing, and the abrasive wear is decreasing.

关 键 词：陶瓷刀具 高温合金GH4169 磨损形貌 磨损机理 

分 类 号：TG132.32[一般工业技术—材料科学与工程]